DLP (Digital Light Processing) forming platform capable of quickly demoulding

Abstract

The utility model relates to the technical field of DLP resin printers, in particular to a DLP forming platform capable of quickly demoulding, which comprises a fixed frame, a Z-axis module, an ejector rod, a forming platform and an ejector pin plate, the Z-axis module is mounted in the fixed frame, the forming platform is mounted at the moving end of the Z-axis module, and the ejector pin plate is mounted at the moving end of the Z-axis module. The ejector plate is arranged above the forming platform, the upper end of the ejector rod is fixedly connected to the fixing frame, and the lower end of the ejector rod extends to the position above the ejector plate. Rapid demolding after DLP printing can be achieved, and other external tools and operation are not needed. The demolding device is convenient to use, simple in structure, stable and reliable, and meanwhile effectively avoids workpiece damage possibly caused by demolding through an external tool.

Description

Technical Field

[0001] The utility model relates to the technical field of DLP resin printers, in particular to a DLP molding platform capable of rapid demoulding. Background Art

[0002] In the field of additive manufacturing or 3D printing, DLP (digital light processing) is a commonly used printing technology. During the DLP printing process, liquid photosensitive resin is spread on the printing platform, and then the shape is projected onto the photosensitive resin through a digital projector to solidify it. This process is repeated layer by layer until a complete 3D object is printed. However, removing the completed object from the printing platform, i.e. demolding, is a time-consuming process that may damage the printed object. The demolding method currently on the market basically adopts the method of removing the molding platform and then using a scraper to scrape the workpiece off. In the process, the scraper has caused the workpiece to be damaged by the scraper. At the same time, the scraper is also prone to scratching the molding platform when scraping the workpiece, causing irreversible damage to the equipment. Therefore, it is necessary to develop a DLP molding platform that can be demolded automatically or quickly. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a DLP molding platform that can be quickly demoulded.

[0004] The utility model provides the following technical solutions:

[0005] A DLP molding platform capable of rapid demoulding comprises a fixed frame, a Z-axis module, a push rod, a molding platform and an ejector plate, wherein the Z-axis module is installed in the fixed frame, the molding platform is installed at the movable end of the Z-axis module, the ejector plate is arranged above the molding platform, the upper end of the push rod is fixedly connected to the fixed frame, and the lower end of the push rod extends to above the ejector plate.

[0006] As an optimal technical solution for a DLP molding platform capable of rapid demoulding, the motor is installed at the lower end of the fixed frame, and the motor is driven and connected to the Z-axis module.

[0007] As an optimal technical solution for a DLP molding platform that can be quickly demolded, the molding platform is installed on the moving end of the Z-axis module through a molding platform frame, and the lower end of the ejector rod passes through a through hole on the molding platform frame and extends to above the ejector plate.

[0008] As an optimal technical solution for a DLP molding platform capable of rapid demoulding, a guide sleeve is installed on the molding platform frame, and the guide sleeve is connected to a guide column through a spring.

[0009] As a preferred technical solution for a DLP molding platform capable of rapid demoulding, the lower end of the guide pillar is fixedly connected to the ejector plate, and a through hole 2 is provided on the molding platform for the ejector on the ejector plate to pass through.

[0010] As a preferred technical solution for a DLP molding platform capable of rapid demoulding, ejector pins of different heights are arranged on the ejector pin plate.

[0011] The utility model relates to a DLP molding platform capable of rapid demoulding. The invention can realize rapid demoulding after DLP printing is completed without the need for other external tools and operations. It is convenient to use, has a simple structure, is stable and reliable, and effectively avoids damage to the workpiece that may be caused by demoulding using external tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the device of the utility model;

[0014] Figure 2 It is a front view structural schematic diagram of the device of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the device of the utility model from a side view.

[0016] In the figure: 1. fixed frame; 2. Z-axis module; 3. motor; 4. ejector rod; 5. guide column; 6. guide sleeve; 7. spring; 8. molding platform frame; 9. molding platform; 10. ejector plate. DETAILED DESCRIPTION

[0017] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with one or more embodiments of the utility model. Instead, they are only examples of devices and methods consistent with some aspects of one or more embodiments of the utility model.

[0018] It should be noted that: in other embodiments, the steps of the corresponding method are not necessarily performed in the order shown and described in the utility model. In some other embodiments, the steps included in the method may be more or less than those described in the utility model. In addition, a single step described in the utility model may be decomposed into multiple steps for description in other embodiments; and multiple steps described in the utility model may be combined into a single step for description in other embodiments.

[0019] like Figures 1 to 3 As shown, a DLP molding platform capable of rapid demoulding is characterized in that it comprises: a fixed frame 1, a Z-axis module 2, a motor 3, a push rod 4, a guide column 5, a guide sleeve 6, a spring 7, a molding platform frame 8, a molding platform 9 and an ejector plate 10; the Z-axis module 2 is mounted on the fixed frame 1, the motor 3 is connected to the Z-axis module 2 as a driving force for the module to move, the push rod 4 is fixed on the fixed frame 1, the molding platform frame 8 is fixed to the moving slider end of the Z-axis module 2, and moves up and down with the operation of the motor 3, and a through hole is left on the molding platform frame 8 to allow the push rod 4 to pass through; the molding platform 9 is fixed on the molding platform frame 8, the printed workpiece and the molding platform 9 are bonded together, the molding platform frame 8 is equipped with a guide column 5 and a guide sleeve 6, the guide column 5 is kept relatively suspended by the spring 7 and the guide sleeve 6, one end of the guide column 5 is connected and fixed to the ejector plate 10, and a through hole 2 is provided on the molding platform 9 for the ejector on the ejector plate 10 to pass through.

[0020] After printing is completed, the molding platform 9 moves upward with the Z-axis module 2. When it moves to a certain position, the ejector rod 4 passes through the through hole 1 on the platform frame and presses the ejector plate 10. The ejector on the ejector plate 10 presses the workpiece on the molding platform 9 off, completing rapid demoulding.

[0021] The guide column 5 is kept relatively suspended by the spring 7 and the guide sleeve 6. The guide rod and the guide sleeve 6 can effectively ensure that the ejector plate 10 only moves in the vertical direction during the movement without horizontal plane deviation, ensuring that the ejector can pass through the second through hole on the molding platform 9 each time without causing damage to the device. After the rapid demoulding is completed, the molding platform 9 moves downward, the ejector rod 4 and the ejector plate 10 are separated, and the elastic force of the spring 7 pushes the guide column 5 to move upward to restore to the original suspended state.

[0022] The ejector plate 10 is provided with ejectors of different heights, which has the advantage that when demoulding, the model is first subjected to point force and then gradually to surface force, the whole process requires less force, the load on the motor 3 is small, and it is more stable and reliable than demoulding the entire surface at the same time.

[0023] The above description is only a preferred embodiment of one or more embodiments of the present invention and is not intended to limit one or more embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present invention shall be included in the scope of protection of one or more embodiments of the present invention.

Claims

1. A DLP molding platform capable of rapid demoulding, characterized in that: The invention comprises a fixed frame (1), a Z-axis module (2), a push rod (4), a molding platform (9) and a push pin plate (10), wherein the Z-axis module (2) is installed in the fixed frame (1), the molding platform (9) is installed at the movable end of the Z-axis module (2), the push pin plate (10) is arranged above the molding platform (9), the upper end of the push rod (4) is fixedly connected to the fixed frame (1), and the lower end of the push rod (4) extends to above the push pin plate (10).

2. The DLP molding platform capable of rapid demoulding according to claim 1, characterized in that: A motor (3) is installed at the lower end of the fixed frame (1), and the motor (3) is drivingly connected to the Z-axis module (2).

3. The DLP molding platform capable of rapid demoulding according to claim 2, characterized in that: The molding platform (9) is installed on the movable end of the Z-axis module (2) through the molding platform frame (8), and the lower end of the ejector rod (4) passes through a through hole on the molding platform frame (8) and extends to the top of the ejector plate (10).

4. The DLP molding platform capable of rapid demoulding according to claim 3, characterized in that: A guide sleeve (6) is installed on the molding platform frame (8), and the guide sleeve (6) is connected to the guide column (5) through a spring (7).

5. The DLP molding platform capable of rapid demoulding according to claim 4, characterized in that: The lower end of the guide column (5) is fixedly connected to the ejector plate (10), and the molding platform (9) is provided with a second through hole for the ejector on the ejector plate (10) to pass through.

6. The DLP molding platform capable of rapid demoulding according to claim 5, characterized in that: The ejector plate (10) is provided with ejectors of different heights.

Images